2x^2+20x+100=110

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Solution for 2x^2+20x+100=110 equation:


Simplifying
2x2 + 20x + 100 = 110

Reorder the terms:
100 + 20x + 2x2 = 110

Solving
100 + 20x + 2x2 = 110

Solving for variable 'x'.

Reorder the terms:
100 + -110 + 20x + 2x2 = 110 + -110

Combine like terms: 100 + -110 = -10
-10 + 20x + 2x2 = 110 + -110

Combine like terms: 110 + -110 = 0
-10 + 20x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-5 + 10x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-5 + 10x + x2)' equal to zero and attempt to solve: Simplifying -5 + 10x + x2 = 0 Solving -5 + 10x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '5' to each side of the equation. -5 + 10x + 5 + x2 = 0 + 5 Reorder the terms: -5 + 5 + 10x + x2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 10x + x2 = 0 + 5 10x + x2 = 0 + 5 Combine like terms: 0 + 5 = 5 10x + x2 = 5 The x term is 10x. Take half its coefficient (5). Square it (25) and add it to both sides. Add '25' to each side of the equation. 10x + 25 + x2 = 5 + 25 Reorder the terms: 25 + 10x + x2 = 5 + 25 Combine like terms: 5 + 25 = 30 25 + 10x + x2 = 30 Factor a perfect square on the left side: (x + 5)(x + 5) = 30 Calculate the square root of the right side: 5.477225575 Break this problem into two subproblems by setting (x + 5) equal to 5.477225575 and -5.477225575.

Subproblem 1

x + 5 = 5.477225575 Simplifying x + 5 = 5.477225575 Reorder the terms: 5 + x = 5.477225575 Solving 5 + x = 5.477225575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 5.477225575 + -5 Combine like terms: 5 + -5 = 0 0 + x = 5.477225575 + -5 x = 5.477225575 + -5 Combine like terms: 5.477225575 + -5 = 0.477225575 x = 0.477225575 Simplifying x = 0.477225575

Subproblem 2

x + 5 = -5.477225575 Simplifying x + 5 = -5.477225575 Reorder the terms: 5 + x = -5.477225575 Solving 5 + x = -5.477225575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -5.477225575 + -5 Combine like terms: 5 + -5 = 0 0 + x = -5.477225575 + -5 x = -5.477225575 + -5 Combine like terms: -5.477225575 + -5 = -10.477225575 x = -10.477225575 Simplifying x = -10.477225575

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.477225575, -10.477225575}

Solution

x = {0.477225575, -10.477225575}

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